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68 lines
2.2 KiB
68 lines
2.2 KiB
/************************************************************************
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Extended WPF Toolkit
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Copyright (C) 2010-2012 Xceed Software Inc.
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This program is provided to you under the terms of the Microsoft Public
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License (Ms-PL) as published at http://wpftoolkit.codeplex.com/license
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This program can be provided to you by Xceed Software Inc. under a
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proprietary commercial license agreement for use in non-Open Source
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projects. The commercial version of Extended WPF Toolkit also includes
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priority technical support, commercial updates, and many additional
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useful WPF controls if you license Xceed Business Suite for WPF.
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Visit http://xceed.com and follow @datagrid on Twitter.
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**********************************************************************/
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using System;
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using System.IO;
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using System.Text;
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using System.Windows;
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using System.Windows.Documents;
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namespace Xceed.Wpf.Toolkit
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{
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/// <summary>
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/// Formats the RichTextBox text as RTF
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/// </summary>
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public class RtfFormatter : ITextFormatter
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{
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public string GetText( FlowDocument document )
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{
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TextRange tr = new TextRange( document.ContentStart, document.ContentEnd );
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using( MemoryStream ms = new MemoryStream() )
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{
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tr.Save( ms, DataFormats.Rtf );
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return ASCIIEncoding.Default.GetString( ms.ToArray() );
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}
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}
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public void SetText( FlowDocument document, string text )
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{
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try
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{
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//if the text is null/empty clear the contents of the RTB. If you were to pass a null/empty string
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//to the TextRange.Load method an exception would occur.
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if( String.IsNullOrEmpty( text ) )
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{
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document.Blocks.Clear();
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}
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else
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{
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TextRange tr = new TextRange( document.ContentStart, document.ContentEnd );
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using( MemoryStream ms = new MemoryStream( Encoding.ASCII.GetBytes( text ) ) )
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{
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tr.Load( ms, DataFormats.Rtf );
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}
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}
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}
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catch
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{
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throw new InvalidDataException( "Data provided is not in the correct RTF format." );
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}
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}
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}
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}
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